Installation
2.12Grounding Checks
The product must only be connected to a power source that has a safety electrical earth connection.
Warning If more than one product is fitted in a rack, the earth connection to the rack is even more important, because the rack will then have a high “EARTH LEAKAGE CURRENT” (“TOUCH CURRENT”).
The earth connection to the rack must be checked before switching on by an electrical engineer who is qualified to the appropriate local and national standards to perform the check.
IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide | 31 |